326 citations · 1.9k across the 28 of their papers we have counts for
27 papers · 1 filter
Exploring the symmetry of supergravity
Walter H. Baron, Diego Marques, Carmen A. Nunez
Kaluza-Klein reductions of low energy string effective actions possess a continuous symmetry. The non-geometric elements of this group, parameterized by a bi-vector ,…
An -complete theory of cosmology and its tensionless limit
Tomas Codina, Olaf Hohm, Diego Marques
We explore the exactly duality invariant higher-derivative extension of double field theory due to Hohm, Siegel and Zwiebach (HSZ) specialized to cosmological backgrounds. Despite…
The -symmetry of supergravity
Walter H. Baron, Diego Marques, Carmen A. Nunez
Continuous O global symmetries emerge in Kaluza-Klein reductions of -dimensional string supergravities to dimensions. We show that the non-geometric elements of thi…
General String Cosmologies at Order
Tomas Codina, Olaf Hohm, Diego Marques
We compute the cosmological reduction of general string theories, including bosonic, heterotic and type II string theory to order , i.e., with up to eight derivatives. To t…
String Dualities at Order
Tomas Codina, Olaf Hohm, Diego Marques
We compute the cosmological reduction of the fourth powers of the Riemann tensor claimed to arise in string theory at order , with overall coefficient proportional to $ζ(…
Generalized Dualities and Higher Derivatives
Tomas Codina, Diego Marques
Generalized dualities had an intriguing incursion into Double Field Theory (DFT) in terms of local transformations. We review this idea and use the higher derivative formu…
The generalized Bergshoeff-de Roo identification
Walter H. Baron, Eric Lescano, Diego Marques
There are two main approaches to duality covariant first order higher derivative corrections to the heterotic string, one extending the duality structure and the other deforming th…
algebras and Tensor Hierarchies in Exceptional Field Theory and Gauged Supergravity
Yago Cagnacci, Tomas Codina, Diego Marques
We show how the gauge and field structure of the tensor hierarchies in Double and Exceptional Field Theory fits into algebras. Special attention is paid to re…
The Odd story of -corrections
Walter H. Baron, Jose J. Fernandez-Melgarejo, Diego Marques +1
The -deformed frame-like Double Field Theory (DFT) is a T-duality and gauge invariant extension of DFT in which generalized Green-Schwarz transformations provide a gauge princi…
Second order higher-derivative corrections in Double Field Theory
Eric Lescano, Diego Marques
HSZ Double Field Theory is a higher-derivative theory of gravity with exact and manifest T-duality symmetry. The first order corrections in the massless sector were shown to be gov…
Perturbative Double Field Theory on General Backgrounds
Olaf Hohm, Diego Marques
We develop the perturbation theory of double field theory around arbitrary solutions of its field equations. The exact gauge transformations are written in a manifestly background…
T-duality and -corrections
Diego Marques, Carmen A. Nunez
We construct an invariant universal formulation of the first-order -corrections of the string effective actions involving the dilaton, metric and two-form fields. Two…
All gaugings and stable de Sitter in D=7 half-maximal supergravity
Giuseppe Dibitetto, Jose J. Fernández-Melgarejo, Diego Marqués
We study the general formulation of gauged supergravity in seven dimensions with sixteen supercharges keeping duality covariance by means of the embedding tensor formalism. We firs…
Heterotic '-corrections in Double Field Theory
Oscar A. Bedoya, Diego Marques, Carmen Nunez
We extend the generalized flux formulation of Double Field Theory to include all the first order bosonic contributions to the expansion of the heterotic string low energy effe…
The gauge structure of Exceptional Field Theories and the tensor hierarchy
Gerardo Aldazabal, Mariana Graña, Diego Marqués +1
We address the construction of manifest U-duality invariant generalized diffeomorphisms. The closure of the algebra requires an extension of the tangent space to include a tensor h…
Double Field Theory: A Pedagogical Review
Gerardo Aldazabal, Diego Marques, Carmen Nunez
Double Field Theory (DFT) is a proposal to incorporate T-duality, a distinctive symmetry of string theory, as a symmetry of a field theory defined on a double configuration space.…
Exploring Double Field Theory
David Geissbuhler, Diego Marques, Carmen Nunez +1
We present a flux formulation of Double Field Theory, in which geometric and non-geometric fluxes are dynamical and field-dependent. Gauge consistency imposes a set of quadratic co…
Extended geometry and gauged maximal supergravity
G. Aldazabal, M. Graña, D. Marqués +1
We consider generalized diffeomorphisms on an extended mega-space associated to the U-duality group of gauged maximal supergravity in four dimensions, E_7. Through the bein for the…
Duality orbits of non-geometric fluxes
G. Dibitetto, J. J. Fernandez-Melgarejo, D. Marques +1
Compactifications in duality covariant constructions such as generalised geometry and double field theory have proven to be suitable frameworks to reproduce gauged supergravities c…
Gauged Double Field Theory
Mariana Graña, Diego Marques
We find necessary and sufficient conditions for gauge invariance of the action of Double Field Theory (DFT) as well as closure of the algebra of gauge symmetries. The so-called wea…
The effective action of Double Field Theory
Gerardo Aldazabal, Walter Baron, Diego Marques +1
We perform a generalized Scherk-Schwarz dimensional reduction of Double Field Theory on a twisted double torus. The four dimensional effective action is shown to exactly reproduce…
On Type IIB moduli stabilization and N = 4, 8 supergravities
Gerardo Aldazabal, Diego Marques, Carmen A. Nunez +1
We analyze D = 4 compactifications of Type IIB theory with generic, geometric and non-geometric, dual fluxes turned on. In particular, we study N = 1 toroidal orbifold compactifica…
Explicit R-Symmetry Breaking and Metastable Vacua
D. Marques, F. A. Schaposnik
We consider O'Raifeartaigh-like models with explicit R-symmetry breaking and analyze the vacuum landscape. Taking such models as candidates for the hidden sector, we analyze the ga…
Supersymmetry and R-symmetry breaking in models with non-canonical Kahler potential
L. G. Aldrovandi, D. Marques
We analyze several aspects of R-symmetry and supersymmetry breaking in generalized O'Raifeartaigh models with non-canonical Kahler potential. Some conditions on the Kahler potentia…